How can i open a link in safari when i click UIWebView? - html

Question

I'm trying to open one link in safari when i click the UIWebview (its like ad display).
Following code am using but what happend is when i click the webview its opening inside UIWebview for some links (not all).
- (BOOL)webView:(UIWebView *)webView1 shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
if (webView1==webview) {
if (UIWebViewNavigationTypeLinkClicked == navigationType) {
[[UIApplication sharedApplication] openURL:[request URL]];
return NO;
}
return YES;
}
}
what happens here is if any text link in that UIWebView then its opening correctly ,But if a UIWebview with images then its opening in same UIWebview instead of a new browser.
MY CURRENT CODE
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
[_webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.example.com/files/ad.htm"]]];
[_webView setBackgroundColor:[UIColor clearColor]];
[_webView setOpaque:NO];
_webView.scrollView.bounces = NO;
}
-(BOOL) webView:(UIWebView *)inWeb shouldStartLoadWithRequest:(NSURLRequest *)inRequest navigationType:(UIWebViewNavigationType)inType {
if ( inType == UIWebViewNavigationTypeLinkClicked ) {
[[UIApplication sharedApplication] openURL:[inRequest URL]];
return NO;
}
return YES;
}

Answer 1

Seems like those images has been linked using anchor tags...
Try this...
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
static NSString *reguler_exp = #"^(([a-zA-Z]|[a-zA-Z][a-zA-Z0-9-]*[a-zA-Z0-9])[.])+([A-Za-z]|[A-Za-z][A-Za-z0-9-]*[A-Za-z0-9])$";
//Regular expression to detect those certain tags..You can play with this regular expression based on your requirement..
NSPredicate *resultPredicate = [NSPredicate predicateWithFormat:#"SELF MATCHES %#", reguler_exp];
//predicate the matched tags.
if ([resultPredicate evaluateWithObject:request.URL.host]) {
[[UIApplication sharedApplication] openURL:request.URL];
return NO;
} else {
return YES;
}
}
EDIT: Don't allow this delegate method to get called for the first time.Add some logic that it won't get called for the 1st time loading the webview.
(SOP's new requirement,see below comment)
How to to detect the touch on uiwebview,
1)Add the tapgesture to your webview.(before that add UIGestureRecognizerDelegate in your viewcontroller.h)
example:
UITapGestureRecognizer* singleTap=[[UITapGestureRecognizer alloc]initWithTarget:self action:#selector(handleSingleTap:)];
singleTap.numberOfTouchesRequired=1;
singleTap.delegate=self;
[webview addGestureRecognizer:singleTap];
2)Then add this delegate method,
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
//return YES,if you want to control the action natively;
//return NO,in case your javascript does the rest.
}
Note: In case you want to check whether the touch is native or htmml(javascript) check the nice little tutorial here,about handling the javascript events etc....Hope this helps you..